Sagot :
c est toujours le même principe
2/3 x 33=22
2/8 x 720=180
3/4 x 160=120
1/10 x 100=10
2/3*33 = (2*33)/3 = (2*3*11)/3 = 2*11 = 22
2/8*720 = (2*720)/8 = (2*8*90)/8 = 2*90 = 180
3/4*160 = (3*160)/4 = (3*4*40)/4 = 3*40 = 120
1/10*100 = (1*100)/10 = (1*10*10)/10 = 1*10 = 10